''Rhinogobio hunanensis'' is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

cyprinid Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest ve ...

fish. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

to the middle and upper reaches of the

Yuan River The Yuan River, also known by its Chinese name as the Yuanjiang, is one of the four largest rivers in Hunan province in southeast-central China. It is a tributary of Yangtze River. It is long and rises in Guizhou province in the Miao Moun ...

in China. It can grow to

standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish ...

References

hunanensis Cyprinid fish of Asia Freshwater fish of China Endemic fauna of China Fish described in 1980 {{Gobioninae-stub